CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY/(DEFICIT) - USD ($) $ in Millions | Total | Common Stock | Preferred Stock | Preferred Stock | Preferred StockPreferred Stock | Common Stock | Common StockCommon Stock | Additional Paid-in Capital | Additional Paid-in CapitalCommon Stock | Additional Paid-in CapitalPreferred Stock | Retained Earnings | Accumulated Other Comprehensive (Loss)/Income | Treasury Stock |
Beginning Balance at Sep. 30, 2018 | $ 24.5 | | | $ 0 | | $ 0.6 | | $ 217.8 | | | $ 177.3 | $ (241.8) | $ (129.4) |
Beginning Balance, Common Stock (in shares) at Sep. 30, 2018 | | | | | | 59,608,000 | | | | | | | |
Beginning Balance, Preferred Stock (in shares) at Sep. 30, 2018 | | | | 0 | | | | | | | | | |
Increase (Decrease) in Stockholders' Equity [Roll Forward] | | | | | | | | | | | | | |
Net (loss)/earnings | 70.8 | | | | | | | | | | 70.8 | | |
Share based payments | 6.5 | | | | | | | 6.5 | | | | | |
Activity under stock plans | (7.1) | | | | | | | (16.1) | | | (3.6) | | 12.6 |
Activity under stock plans (in shares) | | | | | | 290,000 | | | | | | | |
Dividends to common shareholders | (18.4) | | | | | | | | | | (18.4) | | |
Other comprehensive loss | (5.9) | | | | | | | | | | | (5.9) | |
Ending Balance at Dec. 31, 2018 | $ 70.4 | | | $ 0 | | $ 0.6 | | 208.2 | | | 226.1 | (247.7) | (116.8) |
Ending Balance, Common Stock (in shares) at Dec. 31, 2018 | | | | | | 59,898,000 | | | | | | | |
Ending Balance, Preferred Stock (in shares) at Dec. 31, 2018 | | | | 0 | | | | | | | | | |
Dividends per common share (in dollars per share) | $ 61,400,000 | | | | | | | | | | | | |
Beginning Balance at Sep. 30, 2018 | $ 24.5 | | | $ 0 | | $ 0.6 | | 217.8 | | | 177.3 | (241.8) | (129.4) |
Beginning Balance, Common Stock (in shares) at Sep. 30, 2018 | | | | | | 59,608,000 | | | | | | | |
Beginning Balance, Preferred Stock (in shares) at Sep. 30, 2018 | | | | 0 | | | | | | | | | |
Increase (Decrease) in Stockholders' Equity [Roll Forward] | | | | | | | | | | | | | |
Net loss from discontinued operations | (12.8) | | | | | | | | | | | | |
Deferred compensation plan | 0.1 | | | | | | | | | | | | |
Ending Balance at Jun. 30, 2019 | $ 570.7 | | | $ 0 | | $ 0.7 | | 867.2 | | | 109.5 | (245.3) | (161.4) |
Ending Balance, Common Stock (in shares) at Jun. 30, 2019 | | | | | | 68,840,000 | | | | | | | |
Ending Balance, Preferred Stock (in shares) at Jun. 30, 2019 | | | | 2,156,000 | | | | | | | | | |
Dividends per common share (in dollars per share) | $ 0.30 | | | | | | | | | | | | |
Beginning Balance at Dec. 31, 2018 | $ 70.4 | | | $ 0 | | $ 0.6 | | 208.2 | | | 226.1 | (247.7) | (116.8) |
Beginning Balance, Common Stock (in shares) at Dec. 31, 2018 | | | | | | 59,898,000 | | | | | | | |
Beginning Balance, Preferred Stock (in shares) at Dec. 31, 2018 | | | | 0 | | | | | | | | | |
Increase (Decrease) in Stockholders' Equity [Roll Forward] | | | | | | | | | | | | | |
Net (loss)/earnings | (62.3) | | | | | | | | | | (62.3) | | |
Net loss from discontinued operations | (11) | | | | | | | | | | (11) | | |
Share based payments | 7.6 | | | | | | | 7.6 | | | | | |
Issuance of stock | | $ 445.8 | $ 199.5 | | | | $ 0.1 | | $ 445.7 | $ 199.5 | | | |
Issuance of stock (in shares) | | | | | 2,156,000 | | 9,966,000 | | | | | | |
Activity under stock plans | 0 | | | | | | | (0.5) | | | | | 0.5 |
Activity under stock plans (in shares) | | | | | | 11,000 | | | | | | | |
Dividends to common shareholders | (21.6) | | | | | | | | | | (21.6) | | |
Dividends to preferred shareholders | (3.3) | | | | | | | | | | (3.3) | | |
Other comprehensive loss | 20.2 | | | | | | | | | | | 20.2 | |
Ending Balance at Mar. 31, 2019 | 645.3 | | | $ 0 | | $ 0.7 | | 860.5 | | | 127.9 | (227.5) | (116.3) |
Ending Balance, Common Stock (in shares) at Mar. 31, 2019 | | | | | | 69,875,000 | | | | | | | |
Ending Balance, Preferred Stock (in shares) at Mar. 31, 2019 | | | | 2,156,000 | | | | | | | | | |
Increase (Decrease) in Stockholders' Equity [Roll Forward] | | | | | | | | | | | | | |
Net (loss)/earnings | 9.2 | | | | | | | | | | 9.2 | | |
Net loss from discontinued operations | (1.8) | | | | | | | | | | (1.8) | | |
Share based payments | 6.7 | | | | | | | 6.7 | | | | | |
Common stock purchased | (45) | | | | | | | | | | | | (45) |
Common stock purchased (in shares) | | | | | | (1,036,000) | | | | | | | |
Activity under stock plans | (0.1) | | | | | | | | | | | | (0.1) |
Deferred compensation plan | 0.1 | | | | | | | | | | | | |
Activity under stock plans (in shares) | | | | | | 1,000 | | | | | | | |
Dividends to common shareholders | (21.4) | | | | | | | | | | (21.4) | | |
Dividends to preferred shareholders | (4.4) | | | | | | | | | | (4.4) | | |
Other comprehensive loss | (17.8) | | | | | | | | | | | (17.8) | |
Ending Balance at Jun. 30, 2019 | 570.7 | | | $ 0 | | $ 0.7 | | 867.2 | | | 109.5 | (245.3) | (161.4) |
Ending Balance, Common Stock (in shares) at Jun. 30, 2019 | | | | | | 68,840,000 | | | | | | | |
Ending Balance, Preferred Stock (in shares) at Jun. 30, 2019 | | | | 2,156,000 | | | | | | | | | |
Beginning Balance at Sep. 30, 2019 | 543.8 | | | $ 0 | | $ 0.7 | | 870.3 | | | 129.5 | (298.3) | (158.4) |
Beginning Balance, Common Stock (in shares) at Sep. 30, 2019 | | | | | | 68,902,000 | | | | | | | |
Beginning Balance, Preferred Stock (in shares) at Sep. 30, 2019 | | | | 2,156,000 | | | | | | | | | |
Increase (Decrease) in Stockholders' Equity [Roll Forward] | | | | | | | | | | | | | |
Net (loss)/earnings | 45.8 | | | | | | | | | | 45.8 | | |
Net loss from discontinued operations | 0.3 | | | | | | | | | | 0.3 | | |
Share based payments | 7.2 | | | | | | | 7.2 | | | | | |
Activity under stock plans | (9.4) | | | | | | | (24.9) | | | (1.1) | | 16.6 |
Activity under stock plans (in shares) | | | | | | 374,000 | | | | | | | |
Dividends to common shareholders | (21.4) | | | | | | | | | | (21.4) | | |
Dividends to preferred shareholders | (4) | | | | | | | | | | (4) | | |
Other comprehensive loss | 25.2 | | | | | | | | | | | 25.2 | |
Ending Balance at Dec. 31, 2019 | $ 587.5 | | | $ 0 | | $ 0.7 | | 852.6 | | | 149.1 | (273.1) | (141.8) |
Ending Balance, Common Stock (in shares) at Dec. 31, 2019 | | | | | | 69,276,000 | | | | | | | |
Ending Balance, Preferred Stock (in shares) at Dec. 31, 2019 | | | | 2,156,000 | | | | | | | | | |
Dividends per common share (in dollars per share) | $ 63,600,000 | | | | | | | | | | | | |
Beginning Balance at Sep. 30, 2019 | $ 543.8 | | | $ 0 | | $ 0.7 | | 870.3 | | | 129.5 | (298.3) | (158.4) |
Beginning Balance, Common Stock (in shares) at Sep. 30, 2019 | | | | | | 68,902,000 | | | | | | | |
Beginning Balance, Preferred Stock (in shares) at Sep. 30, 2019 | | | | 2,156,000 | | | | | | | | | |
Increase (Decrease) in Stockholders' Equity [Roll Forward] | | | | | | | | | | | | | |
Net loss from discontinued operations | (130.3) | | | | | | | | | | | | |
Deferred compensation plan | 0.3 | | | | | | | | | | | | |
Ending Balance at Jun. 30, 2020 | 385.8 | | | $ 0 | | $ 0.7 | | 859.1 | | | 10.8 | (305.3) | (179.5) |
Ending Balance, Common Stock (in shares) at Jun. 30, 2020 | | | | | | 68,459,000 | | | | | | | |
Ending Balance, Preferred Stock (in shares) at Jun. 30, 2020 | | | | 2,156,000 | | | | | | | | | |
Beginning Balance at Dec. 31, 2019 | 587.5 | | | $ 0 | | $ 0.7 | | 852.6 | | | 149.1 | (273.1) | (141.8) |
Beginning Balance, Common Stock (in shares) at Dec. 31, 2019 | | | | | | 69,276,000 | | | | | | | |
Beginning Balance, Preferred Stock (in shares) at Dec. 31, 2019 | | | | 2,156,000 | | | | | | | | | |
Increase (Decrease) in Stockholders' Equity [Roll Forward] | | | | | | | | | | | | | |
Net (loss)/earnings | 13.7 | | | | | | | | | | 13.7 | | |
Net loss from discontinued operations | (131.4) | | | | | | | | | | (131.4) | | |
Share based payments | 8.7 | | | | | | | 8.7 | | | | | |
Common stock purchased | (45) | | | | | | | | | | | | (45) |
Common stock purchased (in shares) | | | | | | (980,000) | | | | | | | |
Activity under stock plans | (0.3) | | | | | | | (1.7) | | | (0.1) | | 1.5 |
Deferred compensation plan | 0 | | | | | | | (5.7) | | | | | 5.7 |
Deferred compensation plan (in shares) | | | | | | 125,000 | | | | | | | |
Activity under stock plans (in shares) | | | | | | 36,000 | | | | | | | |
Dividends to common shareholders | (21.4) | | | | | | | | | | (21.4) | | |
Dividends to preferred shareholders | (4.1) | | | | | | | | | | (4.1) | | |
Other comprehensive loss | (34) | | | | | | | | | | | (34) | |
Ending Balance at Mar. 31, 2020 | 373.7 | | | $ 0 | | $ 0.7 | | 853.9 | | | 5.8 | (307.1) | (179.6) |
Ending Balance, Common Stock (in shares) at Mar. 31, 2020 | | | | | | 68,457,000 | | | | | | | |
Ending Balance, Preferred Stock (in shares) at Mar. 31, 2020 | | | | 2,156,000 | | | | | | | | | |
Increase (Decrease) in Stockholders' Equity [Roll Forward] | | | | | | | | | | | | | |
Net (loss)/earnings | 29 | | | | | | | | | | 29 | | |
Net loss from discontinued operations | 0.8 | | | | | | | | | | 0.8 | | |
Share based payments | 5.3 | | | | | | | 5.3 | | | | | |
Common stock purchased | $ (45) | | | | | | | | | | | | |
Common stock purchased (in shares) | (980,136) | | | | | | | | | | | | |
Activity under stock plans | | | | | | | | (0.1) | | | | | 0.1 |
Deferred compensation plan | $ 0.5 | | | | | | | | | | | | |
Activity under stock plans (in shares) | | | | | | 2,000 | | | | | | | |
Dividends to common shareholders | (20.8) | | | | | | | | | | (20.8) | | |
Dividends to preferred shareholders | (4) | | | | | | | | | | (4) | | |
Other comprehensive loss | 1.8 | | | | | | | | | | | 1.8 | |
Ending Balance at Jun. 30, 2020 | $ 385.8 | | | $ 0 | | $ 0.7 | | $ 859.1 | | | $ 10.8 | $ (305.3) | $ (179.5) |
Ending Balance, Common Stock (in shares) at Jun. 30, 2020 | | | | | | 68,459,000 | | | | | | | |
Ending Balance, Preferred Stock (in shares) at Jun. 30, 2020 | | | | 2,156,000 | | | | | | | | | |